Electromagnetic coil for toy electric motors



Jan. 31, 1933. A HANLEY 1,895,460

ELECTROMAGNETIC COIL FOR TOY ELECTRIC MOTORS Filed Dec. 19, 1929 I O F INVEZC? ATTORNEY Patented Jan. 31, 1933 PATENT OFFICE J'OHlN' A. EANLEY, OF IRVINGTON, NEW JERSEY nLncrnomeNEmo COIL roa'roY ELECTRIC morons Application filed December 19, 1929. Serial No. 415,145.

, This invention relates in general to an "electric motor andmore particularly to a motor especially designed for use in toys, for example electric trains, automobiles, fans v liand 'the like, and to replace the ordinary spring motors used intoys.

One-object of the invention is to provide an electromagnetic coil for an electric motor embodying novel and improved features 19 of construction whereby the motor can be manufactured at low cost so as to be adaptable foruse in inexpensive toys and whereever an inexpensive small power electric motor is desired. 7

Other objects are to provide a novel and improved electromagnetic coil unit for electric motors and the like including means for mounting the coil on a sup ort, for example, to form the stator or fiel and rotor or armature of a motor, and to obtain other advantages and results as will be more fully brought out by the following description. 7 Referring to theaccompanying drawing inj which corresponding and like parts are 2-? designated'by the same reference characters,

iFigure 1 is a vertical longitudinal sectionalview through an electric motor em- 7 V bodying myinvention, showing the same applied to a toy railway car. i Figure 2 is a transverse vertical sectional view taken on the line 22 of Figure 1. Figure 3 is a similar. view taken on the line 3+3of-Figure 1. V

Figure 4 is an end elevation of the motor ,SS and its casing viewedrfrom the line fr-4: of

' igure 5 is a similar view of the opposite I end ofthe motor andits casing. I Figure 6 is an enlarged end view of the Y commutator.

. Figure 7 is a top plan view of the commutator with the end rings shown in section for clearness in illustration, and cFigure 8 is an'end view of one of the coils. Specifically describing the illustrated em- 1 bodiment of the invention, the reference character .A generally designates the stator or field of the motor, and B the rotor or armature. Both the field Aand the armature B includea plurality of identical coils 1 each of p which comprises a solid cylindrical core 2 shouldered at each end as at 3 to receive fiber or other insulating end plates & which are held upon the core by metal displaced from the core over the-outer sides of the plates as by punch marks 5. Wound upon the core between the end plates is a coil 6 of suitable Wire the extremities of which pass outwardly through the apertures 7 in one of the end plates. The cores have reduced portions 8 at their ends for securing the coils to their mountings and shoes upon the coils.

The stator A includes two coils which are mounted upon a plate 9 by inserting one reduced end 8 through openings 10 in the plate and upsetting said ends as at 11. To the reduced portions of the other ends of the cores are connected shoes 12 which have tapered openings 13 receiving reduced portions which are spread or expanded into the openings as at 14. Mid-way between the coils of the stator, the plate 9 is formed with an opening 15 in which is secured a bearing bushing 16 between a shoulder on which and the plate 9 is arranged a brush support 17. The bearing bushing 16 acts as a rivet for securing the brush support to the plate 9 and also for securing itself in said plate. Brushes 18 and 19 are secured to opposite ends of the brush 7 support 17 in any suitable manner, as by hollow rivets 20. One terminal 21 of one coil 22 is connected to the brush 18, while the other terminal 23 of the coil 22 is connected to one terminal 24 of the other coil 25. Theother I terminal 26 of the coil 25 is grounded upon the plate 9." i

The rotor of the armature B is mounted on a'shaft 27 and includes a sleeve 28 fast upon the shaft and to which is secured a coil supporting plate 29. Three of the coils 30, 31 and 32 are mounted on the coil supporting plate 29 in the same manner in which the coils 22 and 25 are mounted upon the plate 9, and each of the coils has a shoe 33 connected thereto in the identical manner in which the shoes 12 are connected to the coils 22 and 25 of the stator. The coils are circumferentially arranged aboutthe shaft, and the radial distance between the axis of the shaft 38 and the centers of the coils 30, 31 and 32 is the i mine is the distance between the axis of the 16 of the stetorlnd the centers of- I 22and25;endinassemhlingthemotoralfieendfi of the limit 28 is m 16, while the other end 1s ara in e fixed I end thecircuit is continued and staterfcoflgthe mud one 'oi thiothqg eilsioithe stator and mean-51 n ii ereletionwh xeb thm" A Wm the coils cit/hem on on w mi efieesis known e those se ne-ne g r I :I wiltbe bserved m in mtenoresrmtureismg lmwiflr the axis ofthe sheitflmteaidnf l 3Q- whereethe. @rmetnre'ielrohteble v field, m n general ,thelwmamyp voltflfi andwill run eq fl n ent ertrensformercurrente W relatively small Amount 11mg dmimomsuse mm die The eoilgmitsheve ewige;re.ngeoi'm fronnthe gator, fen example v Mmeta er M ments mueemis will fi f v V V the deteils of construct enmitlwut L61 it u An ectromegnetic cofl l ke eenw s s id i o w h ll qnet imnea dzemdwd. x tionqfktwardlyofseidshoulder,aln',' e -eeei ste e 's M {b cqre enda shoe hevmg'm iue-esgmpfiinthe e o lp n esupper Time-meter designed, to

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ceivefmae reduced end portion I e which is upset tosecure shoeoa u the other reduced end serving to: the; e

JOHN 

